Electron Configuration

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

5

[Kr] 5s² 4d¹⁰ 5p⁴

An orbital diagram is a visual representation of the arrangement of electrons in an atom's orbitals, using arrows to represent electrons.

5

2

The noble gas configuration is a shorthand notation that uses the electron configuration of the nearest noble gas to simplify the representation of an element's electron configuration.

Electron configuration lists all the electrons in an atom, while shorthand configuration uses the nearest noble gas to represent the inner electrons.

6

The Aufbau principle states that electrons occupy the lowest energy orbitals first before filling higher energy levels.